WO2021112449A1 - Dehumidification device having hybrid nanoporous materials, and dehumidification system - Google Patents

Abstract

The present invention provides a dehumidification system comprising: an outdoor space for supplying air containing moisture; a dehumidification device having hybrid nanoporous materials, the device allowing air containing moisture to be introduced from the outdoor space, having the hybrid nanoporous materials provided therein so as to adsorb the moisture from the air containing moisture, and thus discharge dry air, and allowing thermal fluid to be introduced through the other side thereof so as to desorb the moisture from the hybrid nanoporous materials, thereby regenerating the nanoporous materials; a heat pump which is provided on one side of the dehumidification device, and which circulates the thermal fluid so as to supply same to the dehumidification device; a condenser which is provided on one side of the dehumidification device, and which removes moisture again from the air, from which a predetermined amount of moisture has been removed, discharged from the dehumidification device so as to supply same to an indoor space; an evaporator which is provided on one side of the dehumidification device, and which cools the air, from which the predetermined amount of moisture has been removed, discharged from the dehumidification device so as to supply same to the indoor space; and a waste heat source which is provided on the other side of the dehumidification device, and which supplies waste heat to the thermal fluid.

Description

Dehumidifying device and dehumidifying system equipped with hybrid nanoporous body

The present invention relates to a dehumidifying device and a dehumidifying system provided with a hybrid nanoporous body, and more particularly, to a dehumidifying device equipped with a hybrid nanoporous body in which a low-temperature renewable hybrid nanoporous body is used as a moisture adsorbent, and a dehumidifying system using the same. .

An environment with a relative humidity of 60 to 80% or more causes various problems or inconveniences in a specific space. For example, when the relative humidity is 80% or higher at room temperature or standard temperature (25 ℃) or higher, the discomfort index or temperature-humidity index (THI) rises to 75 or higher. Try to lower the temperature and humidity index using

On the other hand, the principle of the dehumidifier is largely divided into a method of condensing and collecting moisture through a condenser (compressor), or a method of collecting and removing moisture by adsorption using a moisture adsorbent.

In the case of the condensing type, since the heat converted through the outdoor unit is included in the dehumidified air in the air conditioner on the same principle as the air conditioner, there is a problem that the temperature of the air supplied by the device after dehumidification is higher than before dehumidification. If the temperature is lower than ℃, there is also a problem that the dehumidification efficiency is sharply decreased because the condensation part is frozen.

In the case of the adsorption type, zeolite is generally used as a moisture adsorbent, and the problem of temperature change like the condensation type is small by adsorbing and removing moisture from the air flowing into the device and then supplying dry air. When the water adsorption capacity of zeolite is saturated, the dehumidifying effect is lost, so continuous operation is possible only when the water desorption process using a heating device for regeneration is included.

However, the dehumidification device using zeolite has a problem in that the utilization is not high because the regeneration temperature is higher than 100 ° C. As a result, additional energy is consumed. When the dehumidifier is constructed using zeolite, it is very difficult to manufacture it in a coated form. Therefore, it is used in a state of being attached to a substrate such as a rotor, which is a big limitation on the actual configuration when considering the size of the dehumidifier required for miniaturization.

Therefore, it is very necessary to develop a small dehumidifier capable of controlling humidity and temperature, including the configuration of an adsorption dehumidifier by selecting a material that can be coated with a material other than zeolite and can be regenerated at a low temperature, and a dehumidification system using the same. to be.

As a related prior document, there is a dehumidifying dryer in Japanese Patent Application Laid-Open No. 2014-100639 (published on Jun. 5, 2014).

[Prior art literature]

[Patent Literature]

(Patent Document 1) Japanese Patent Application Laid-Open No. 2014-100639 (published on 06.05.2014)

Therefore, the present invention has been derived to solve the above-described problems, and using a dehumidifier coated with a hybrid nanoporous body capable of low-temperature regeneration, dehumidification that can effectively control moisture in the air containing moisture introduced from a certain source An object of the present invention is to provide a dehumidifying system capable of dehumidifying ventilation, dehumidifying drying and dehumidifying cooling by effectively controlling moisture in air containing moisture introduced from the outside by providing a device and the dehumidifying device.

The problem to be solved by the present invention is not limited to the problem(s) mentioned above, and another problem(s) not mentioned will be clearly understood by those skilled in the art from the following description.

In order to solve the above problems, according to an embodiment of the present invention, air containing moisture is introduced from a certain source on one side, and a hybrid nanoporous body is provided therein to adsorb moisture from the air containing the moisture. And, to provide a dehumidifying device equipped with a hybrid nanoporous body that is introduced to the other side of the thermal fluid that absorbs waste heat to desorb moisture from the hybrid nanoporous body and regenerate it.

In addition, the dehumidifying device provided with the hybrid nanoporous body may further include an air circulation pump for circulating the internal air by flowing the air containing the moisture on one side and a fluid circulation pump for circulating the thermal fluid on the other side. .

In addition, the dehumidification device provided with the hybrid nanoporous body is provided with an air flow path through which the air containing the moisture flows inside, communicates with the air flow path, and a rotor-type rotating body or a fin tube to which the hybrid nanoporous body is adsorbed ( Fin-tube) may be provided.

In addition, the hybrid nanoporous body is a metal-organic ligand bonding, a metal organic tricarboxylate-based metal-organic framework, a metal organic dicarboxylate-based It may be a metal-organic structure or a complex compound thereof.

In addition, the metal may be iron (Fe) or aluminum (Al).

In addition, the organic tricarboxylate is an anion ligand of trimesic acid or trimellitic acid, and the organic dicarboxylate is terephthalic acid, isophthalic acid ) and any one or more selected from the group consisting of derivatives thereof are mixed, or fumaric acid, succinic acid, malic acid, mesaconic acid, aspartic acid acid), and may be any one anionic ligand selected from the group consisting of itaconic acid.

In addition, the hybrid nanoporous body may further include any one or more metals or oxides thereof from the group consisting of Ti, V, Cr, Mn, Fe, Co, Ni, Cu, and Zn among transition metal elements.

On the other hand, according to another embodiment of the present invention, the present invention provides an outdoor air supply containing moisture; Air containing moisture is introduced from the outside, and a hybrid nanoporous body is provided inside to absorb moisture from the moisture-containing air to discharge dry air, and a thermal fluid is introduced to the other side of the hybrid nanoporous body. a dehumidifying device equipped with a hybrid nanoporous body that desorbs and regenerates moisture; a heat pump provided at one side of the dehumidifying device and circulating a thermal fluid to supply it to the dehumidifying device; a condenser provided at one side of the dehumidifying device to remove moisture from the air from which a predetermined moisture discharged from the dehumidifying device has been removed and supplying it to the room; an evaporator provided at one side of the dehumidifier and cooling the air from which a predetermined moisture has been removed from the dehumidifier and supplying it to the room; and a waste heat source provided on the other side of the dehumidifier and supplying waste heat to the thermal fluid.

In addition, it may be any one selected from the group consisting of buildings, transportation means, and industrial facilities.

In addition, the internal space of the building and transportation means may have a relative humidity of 60% or more at a standard temperature, and the internal space of the industrial facility may have a relative humidity of 50% or more at a standard temperature.

In addition, the condenser may remove moisture from the air discharged from the dehumidifier again and supply it to the room.

In addition, the evaporator may cool the air discharged from the dehumidifier and supply it to the room.

According to the present invention, it is possible to effectively control the humidity of a certain space including buildings, transportation means, or industrial facilities to increase the energy efficiency of cooling, ventilation and dehumidification, and in particular, to effectively control the indoor temperature.

In addition, unlike silica gel and zeolite used as moisture adsorbents in conventional dehumidifiers, low-temperature regeneration is possible, so using waste heat generated by itself in a certain space or supplied from the outside to desorb and regenerate the moisture adsorbed to the hybrid nanoporous body. Therefore, while reducing energy consumption, it is possible to maintain a constant moisture adsorption performance.

In addition, a separate heating device is not used to regenerate the moisture adsorbent, and energy consumption can be greatly reduced by using the waste heat generated by itself.

In addition, various waste heat sources that can be supplied from the outside, such as industrial waste heat and industrial facilities, can be utilized as a regenerated heat source for the moisture adsorbent.

In addition, in combination with a condenser, an evaporator, and a heat pump, dehumidification ventilation, dehumidification cooling, or dehumidification ventilation and dehumidification cooling can be performed simultaneously.

It should be understood that the effects of the present invention are not limited to the above-described effects, and include all effects that can be inferred from the configuration of the invention described in the detailed description or claims of the present invention.

1 is a schematic diagram of a dehumidifying device equipped with a hybrid nanoporous body according to an embodiment of the present invention.

2 is a schematic diagram of a dehumidification system according to another embodiment of the present invention.

3 is a photograph of a fin tube coated with a hybrid nanoporous body in a dehumidifying device equipped with a hybrid nanoporous body according to an embodiment of the present invention.

4 is a photograph of a rotor-type rotating body coated with a hybrid nanoporous body in a dehumidifying device equipped with a hybrid nanoporous body according to an embodiment of the present invention.

5 is a graph showing the rate of change of the amount of dehumidification according to the rotor material of the dehumidifying device having a rotor-type rotating body in the dehumidifying device having a hybrid nanoporous body according to an embodiment of the present invention.

6 is a schematic diagram of a composite dehumidification cooling system having a hybrid nanoporous body employed in the present invention.

7 is a schematic diagram of an industrial air dryer having a hybrid nanoporous body employed in the present invention.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

Advantages and features of the present invention, and a method of achieving the same, will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings.

However, the present invention is not limited by the embodiments disclosed below, but will be implemented in a variety of different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the art to which the present invention pertains It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims.

In addition, in the description of the present invention, if it is determined that related known technologies may obscure the gist of the present invention, detailed description thereof will be omitted.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic diagram of a dehumidifying device equipped with a hybrid nanoporous body according to an embodiment of the present invention.

Referring to FIG. 1 , in the dehumidifying device 100 provided with a hybrid nanoporous body according to an embodiment of the present invention, air 10 containing moisture is introduced from a predetermined source to one side.

When the air 10 containing the moisture is introduced, the hybrid nanoporous body can supply the air 11 from which a certain amount of moisture has been removed by adsorbing the moisture.

The dehumidifying device 100 provided with the hybrid nanoporous body introduces a thermal fluid that has absorbed waste heat, and can regenerate water by desorbing moisture from the hybrid nanoporous body through heat exchange with the thermal fluid.

On the other hand, the dehumidifier 100 provided with the hybrid nanoporous body has an air circulation pump 110 that circulates the air inside by flowing the air 10 containing the moisture to one side and a fluid that circulates the thermal fluid on the other side. It may further include a circulation pump 120 .

The air 10 containing moisture in the standard temperature relative humidity of 70 to 80% or more, or 50% or more in a certain space, the air circulation pump 110 converts the moisture-containing air into the dehumidifying device 100 ) is transferred to

When the air circulation pump 110 is provided, the distance from the dehumidifier 100 provided with a predetermined supply source for supplying air containing moisture and the hybrid nanoporous body can be increased, and the air flow rate is increased to remove moisture. The ventilation process is possible by increasing the dehumidification process and the flow rate of the exhausted air.

The moisture-containing air 10 may be introduced into the dehumidifying device 100 from the outside using the air circulation pump 110 when the dehumidifying ventilation process is performed.

The fluid circulation pump 120 supplies the thermal fluid 121 that has absorbed the waste heat to the dehumidifier, and effectively circulates it to remove moisture from the hybrid nanoporous body to which moisture is absorbed through direct heat exchange with the hybrid nanoporous body. Desorption can be accelerated.

The dehumidifying device 100 provided with the hybrid nanoporous body is provided with an air flow path through which the air containing the moisture flows inside, and the air flow path includes a rotor-type rotating body (not shown) to which the hybrid nanoporous body is adsorbed or A fin tube (not shown; Fin-tube) may be provided.

In particular, a fin tube filled with the hybrid nanoporous body is provided in the air flow path (not shown), so that air containing moisture is introduced, and air dehumidified by adsorbing a certain moisture can be discharged.

The air passage may be provided in a self-rotating rotor type and a fixed total heat exchanger type or fin tube type as a dehumidifying device (moisture adsorption part) coated with the hybrid nanoporous body.

Here, the rotor has its own flow path fixed and the dehumidifier rotates and the adsorption-regeneration continuous operation is performed. In the total heat exchanger type, the flow path crosses and adsorption-regeneration continuous operation is performed, and the fin tube type is adsorption-regeneration with heat transferred through the tube. Continuous operation is possible.

The rotor-type rotating body or the fin tube coated with the hybrid nanoporous body has a small amount of air leakage and can constitute a heat exchange chamber with a small volume, so it is very effective when there is a restriction on the overall size of the system.

In addition, the rotor-type rotating body or the fin tube coated with the hybrid nanoporous body is easy to replace and install, so it is also very effective when it is necessary to control the moisture content by continuously operating for a long time.

The moisture-containing air 10 is in contact with the hybrid nanoporous body moisture absorbent in the rotor-type rotating body or the fin tube in the dehumidifying device 100 and moisture is removed so that the relative humidity is 30 to 50% or less or It is reduced to 10% or less depending on the temperature of the regenerative heat source and is changed to dry air.

The dry air may be introduced into a predetermined space by the operation of the air circulation pump 110 .

In the case of dehumidification cooling, the temperature of the dry air is controlled by the operation of a heat pump, and thus the dry air may be introduced into the room for cooling.

The hybrid nanoporous body is a metal-organic ligand bond, and a metal organic tricarboxylate-based metal-organic framework, a metal organic dicarboxylate-based metal- It may be an organic structure or a complex compound thereof.

The hybrid nanoporous body moisture absorbent 400 is a metal organic tricarboxylate-based metal-organic framework, a metal organic dicarboxylate-based metal-organic structure or It may be a complex compound thereof.

Here, the metal may be iron (Fe) or aluminum (Al).

The organic tricarboxylate is an anionic ligand of trimesic acid or trimellitic acid, and the organic dicarboxylate is terephthalic acid, isophthalic acid, and Any one or more selected from the group consisting of derivatives thereof is mixed, or fumaric acid, succinic acid, malic acid, mesaconic acid, aspartic acid) , and itaconic acid (Itaconic acid) is any one anionic ligand selected from the group consisting of.

The hybrid nanoporous body is a metal-organic framework having a crystalline skeleton with a porous coordination polymer compound.

Therefore, compared to silica gel or zeolite, the specific surface area is 3 to 5 times larger and the moisture adsorption amount is also 2 to 4 times higher, so it is very advantageous to form the dehumidifier in a compact size and to configure a dehumidification system with a hybrid nanoporous body moisture adsorbent. Do.

The hybrid nanoporous body desorbs moisture very effectively even at a low temperature of 100° C. or less, and can be regenerated using various waste heat sources recovered from the outside of the dehumidifying device 100 provided with the hybrid nanoporous body.

The hybrid nanoporous body may be prepared in a coated form differently from silica gel or zeolite charged in a conventional dehumidifier, and may be deformed into various shapes and may be filled in a portion of the air flow path, and the rotor-type rotating body or pin It is possible to effectively form a coating layer on the tube surface.

The hybrid nanoporous body further includes any one or more metals or oxides thereof from the group consisting of Ti, V, Cr, Mn, Fe, Co, Ni, Cu, and Zn among transition metal elements.

2 is a schematic diagram of a dehumidification system according to another embodiment of the present invention.

Referring to FIG. 2 , a dehumidification system according to another embodiment of the present invention includes an outdoor unit, a dehumidifier, a heat pump, a condenser, an evaporator, and a waste heat source.

The dehumidifier has the same configuration as the dehumidifier 100, and a hybrid nanoporous body is provided therein, and air containing moisture is introduced from a certain source to one side, and the moisture is adsorbed and dried air from which moisture is removed. can be discharged

Since the description of the dehumidifier and the hybrid nanoporous body is repeated, it will be omitted below.

The outdoor is a constant source of supplying air containing moisture.

The outdoor is any one selected from the group consisting of buildings, transportation means, and industrial facilities.

The buildings, transportation means, and industrial facilities have a problem in that, when moisture in the internal space increases, a user's discomfort is caused or a large amount of energy is consumed for cooling and dehumidification.

The internal space of the building and transportation means has a relative humidity of 60% or more at the standard temperature, and when moisture in the internal air is constantly removed, energy efficiency such as cooling can be increased, and the problem of increased user discomfort due to the increase in humidity can be solved. can be solved

In addition, the interior space of the building or means of transportation is a space where people are active, and when it is 60% to 70% or more based on relative humidity under standard temperature conditions, the discomfort index or temperature and humidity index (THI) reaches 60 to 70% or more, causing discomfort and , there is a problem of causing condensation on surfaces including ceilings, floors, walls, and windows.

When the outdoor is a building or transportation means, supplying air containing moisture to the dehumidification system reduces the amount of energy used in air with a relative humidity of 60% or more while effectively removing and circulating moisture, thereby reducing the discomfort index. At the same time, condensation can be prevented.

The internal space of the industrial facility may have a relative humidity of 50% or more at a standard temperature.

When the outdoor is an industrial facility, moisture is removed through the dehumidifying system to increase dehumidification efficiency and effectively prevent device malfunction.

The dehumidifier may have a heat pump on one side and regenerate the hybrid nanoporous body by introducing the thermal fluid.

The heat pump may circulate a thermal fluid that has absorbed the waste heat from a waste heat source.

The waste heat source may use industrial waste heat generated in the power generation process of a power plant, incineration process, manufacturing plant, etc. In this case, the energy that is lost can be effectively recycled.

Since moisture is desorbed at a relatively low temperature compared to conventional silica gel or zeolite, the hybrid nanoporous body can be effectively regenerated by introducing waste heat from the various waste heat sources.

The dehumidifying device may be regenerated by introducing a thermal fluid absorbing waste heat to the other side through the heat pump to desorb moisture from the hybrid nanoporous body.

In the dehumidification system, the dehumidifying device and the heat fluid from the waste heat from one side of the dehumidifying device include a heat pump that regenerates the hybrid nanoporous body provided in the dehumidifying device to remove a certain amount of moisture from the air and to the inside. It can show the effect of dehumidifying and drying by supplying it.

The dehumidifying ventilator may supply 30 to 50% or less of air by introducing moisture-containing air and removing a certain amount of moisture from the dehumidifying device.

The condenser is provided on one side of the dehumidifier, and removes moisture from the air from which a certain amount of moisture discharged from the dehumidifier is removed and supplies it to the room.

The condenser may receive air from which a certain amount of moisture has been removed from the dehumidifying device, remove the remaining moisture again, and supply it to the room, thereby exhibiting a dehumidifying ventilation effect.

The evaporator cools the air discharged from the dehumidifier and supplies it to the room.

The evaporator is provided on one side of the dehumidifier, and it receives and cools the air from which some moisture has been removed from the dehumidifier, so that the cooled air can be supplied to the room, thereby exhibiting a dehumidifying cooling effect.

In addition, when the indoor humidity is increased and the relative humidity is changed to air containing moisture of 70% or more, it is recovered to the evaporator to remove a certain amount of moisture, and the moisture is recovered by the dehumidifier to discharge the moisture to the outside.

Accordingly, the dehumidification system may include the dehumidifying device, the heat pump, and the evaporator, remove moisture, cool it, and supply the cooled air back to the room, thereby exhibiting a dehumidifying cooling effect.

In the dehumidification cooling, air in a certain space with high relative humidity is introduced into the dehumidifying device to remove moisture, and air with a temperature of 24 ° C or less and a relative humidity of 30 to 50% or less is discharged and circulated using an evaporator or a heat pump. have.

Therefore, the dehumidification system according to the present invention can effectively exhibit the effects of dehumidifying and drying or dehumidifying ventilation and dehumidifying cooling by providing a dehumidifying device, a heat pump, a condenser and an evaporator.

Hereinafter, preferred examples are presented to help the understanding of the present invention, but the following examples are only illustrative of the present invention and the scope of the present invention is not limited to the following examples.

Preparation Example 1.

For the production of Fe-MOF named MIL-100(Fe) as a hybrid nanoporous body, 23.0 g of secondary distilled water and 10.54 g of Fe(NO ₃ ) ₃ 9H ₂ O and 3.79 g of 1,3 in a round flask ,5-Benzenetricarboxylic acid was mixed and stirred at room temperature for 30 minutes. After the reflux cooler was installed, MIL-100 (Fe) was synthesized by heating at 100 to 120° C. for 12 to 15 hours using an oil bath. After completion of the reaction, the reaction solution was cooled, washed with secondary distilled water, and then washed three times with ethanol. The resulting Fe-BTC crystals were recovered using a filter and dried in an oven at 100° C. to obtain a hybrid nanoporous powder. X-ray-diffraction analysis of the recovered powder. As a result of crystal structure analysis with Cu Kα beamline (40 kV, 30 mA, λ=1.5406 Å), a cubic structure having an Fd-3m space group was shown. The lattice constant a=74.34, and α=β=γ=90 ^° . Also, after pretreatment at ^{150 o} C and vacuum, the specific surface area value measured at ^{-196 o C using a nitrogen adsorption isotherm showed 1950 m 2} /g.

Preparation Example 2.

In order to prepare Al-FMA as a hybrid nanoporous body, 21.514 g of Al ₂ (SO ₄ ) ₃ ·18H ₂ O was dissolved in 70 g of secondary distilled water to prepare a metal precursor solution. A ligand precursor solution was prepared by dissolving 7.34 g of fumaric acid and 7.593 g of caustic soda in 70 g of secondary distilled water. After heating each of the prepared solutions to 60 °C, the metal precursor solution was slowly added to the ligand solution while stirring the mixed solution. After the mixing of the two solutions was completed, the Al-FMA adsorbent was synthesized by reacting at a temperature of 60 to 80° C. for 30 minutes to 2 hours. The reaction solution was filtered, washed with distilled water and ethanol, and ^{dried in an electric oven at 100 o} C to obtain an adsorbent powder.

X-ray-diffraction analysis on the recovered powder. As a result of crystal structure analysis with Cu Kα beamline (40 kV, 30 mA, λ=1.5406 Å), a monoclinic structure having a P21/C space group was shown. The lattice constants were a=6.84, b=12.09, c=14.1, and α=γ=90° and β=122.55 ^o . In addition, the specific surface area value measured using a nitrogen adsorption isotherm at ^{-196 o} C after pretreatment at ^{150 o C and vacuum showed 1120 m 2} /g.

Preparation Example 3.

It was prepared in the same manner as in Preparation Example 2, except that 6.676 g of fumaric acid and 0.755 g of succinic acid were used together to prepare the ligand precursor solution. X-ray-diffraction analysis of the recovered powder. As a result of crystal structure analysis with Cu Kα beamline (40 kV, 30 mA, λ=1.5406 Å), a monoclinic structure having a P21/C space group was revealed. In addition, the specific surface area value measured using a nitrogen adsorption isotherm at ^{-196 o} C after pretreatment at ^{150 o C and vacuum showed 1030 m 2} /g.

Preparation Example 4.

It was prepared in the same manner as in Preparation Example 2, except that 5.94 g of fumaric acid and 1.51 g of succinic acid were used together to prepare the ligand precursor solution. X-ray-diffraction analysis of the recovered powder. As a result of crystal structure analysis with Cu Kα beamline (40 kV, 30 mA, λ=1.5406 Å), a monoclinic structure having a P21/C space group was revealed. In addition, the specific surface area value measured using a nitrogen adsorption isotherm at ^{-196 o} C after pretreatment at ^{150 o C and vacuum showed 1070 m 2} /g.

Preparation 5.

It was prepared in the same manner as in Preparation Example 2, except that 6.676 g of fumaric acid and 0.857 g of malic acid were used together to prepare the ligand precursor solution. X-ray-diffraction analysis of the recovered powder. As a result of crystal structure analysis with Cu Kα beamline (40 kV, 30 mA, λ=1.5406 Å), a monoclinic structure having a P21/C space group was revealed. In addition, the specific surface area value measured using a nitrogen adsorption isotherm at ^{-196 o} C after pretreatment at ^{150 o C and vacuum showed 1080 m 2} /g.

Preparation 6.

It was prepared in the same manner as in Preparation Example 2, except that 6.676 g of fumaric acid and 0.998 g of furandicarboxylic acid were used together to prepare the ligand precursor solution. X-ray-diffraction analysis of the recovered powder. As a result of crystal structure analysis with Cu Kα beamline (40 kV, 30 mA, λ=1.5406 Å), a monoclinic structure having a P21/C space group was revealed. In addition, the specific surface area value measured using a nitrogen adsorption isotherm at ^{-196 o} C after pretreatment at ^{150 o C and vacuum showed 1080 m 2} /g.

Preparation 7.

In Preparation Example 2, in order to prepare a ligand precursor solution, 6.676 g of fumaric acid and 1.062 g of isophthalic acid were used together, except that the mixture was prepared in the same manner. X-ray-diffraction analysis of the recovered powder. As a result of crystal structure analysis with Cu Kα beamline (40 kV, 30 mA, λ=1.5406 Å), a monoclinic structure having a P21/C space group was revealed. In addition, the specific surface area value measured using a nitrogen adsorption isotherm at ^{-196 o} C after pretreatment at ^{150 o C and vacuum showed 1060 m 2} /g.

Preparation 8.

It was prepared in the same manner as in Preparation Example 2, except that 6.676 g of fumaric acid and 1.786 g of 5-sulfoisophthalate sodium salt were used together to prepare the ligand precursor solution. X-ray-diffraction analysis of the recovered powder. As a result of crystal structure analysis with Cu Kα beamline (40 kV, 30 mA, λ=1.5406 Å), a monoclinic structure having a P21/C space group was revealed. In addition, the specific surface area value measured using a nitrogen adsorption isotherm at ^{-196 o} C after pretreatment at ^{150 o C and vacuum showed 1110 m 2} /g.

Preparation 9.

It was prepared in the same manner as in Preparation Example 2, except that 6.676 g of fumaric acid and 1.188 g of 5-hydroxyisophthalic acid were used together to prepare the ligand precursor solution. X-ray-diffraction analysis of the recovered powder. As a result of crystal structure analysis with Cu Kα beamline (40 kV, 30 mA, λ=1.5406 Å), a monoclinic structure having a P21/C space group was revealed. In addition, the specific surface area value measured using a nitrogen adsorption isotherm at ^{-196 o} C after pretreatment at ^{150 o C and vacuum showed 950 m 2} /g.

Preparation 10.

In order to prepare a metal precursor solution in Preparation Example 2, 20.438 g of Al ₂ (SO ₄ ) ₃ ·18H ₂ O and 0.888 g of FeSO ₄ ·7H ₂ O were dissolved in 70 g of secondary distilled water and used in the same manner. prepared by this method. X-ray-diffraction analysis of the recovered powder. As a result of crystal structure analysis with Cu Kα beamline (40 kV, 30 mA, λ=1.5406 Å), a monoclinic structure having a P21/C space group was revealed. In addition, the specific surface area value measured using a nitrogen adsorption isotherm at ^{-196 o} C after pretreatment at ^{150 o C and vacuum showed 980 m 2} /g.

Preparation 11.

To prepare Al-IPA, 16.4 g of Al ₂ (SO ₄ ) ₃ ·18H ₂ O was dissolved in 35 g of secondary distilled water to prepare a metal precursor solution. A ligand precursor solution was prepared by dissolving 8.45 g of isophthalic acid, 5.41 g of caustic soda and 1.32 g of sodium aluminate in 110 g of secondary distilled water. In order to mix the two prepared solutions, the metal precursor solution was slowly added to the ligand solution to prepare a reaction solution. The prepared reaction solution was reacted at 120° C. for 6 hours in a round flask equipped with a reflux cooling device to form Al-IPA crystals, cooled, washed twice with secondary distilled water, and then Al-IPA was recovered and 100 It was dried in an oven at °C. X-ray-diffraction analysis of the recovered powder. As a result of crystal structure analysis with Cu Kα beamline (40 kV, 30 mA, λ=1.5406 Å), _{a tetragonal structure having an I4 1} space group was revealed, and the lattice The constants were a=21.30, c=10.73, and α=β=γ=90 ^o . In addition, the specific surface area value measured using a nitrogen adsorption isotherm at ^{-196 o} C after pretreatment at ^{150 o C and vacuum showed 670 m 2} /g.

Preparation 12.

To prepare Al-IPA-BTC1, 11.66 g of Al ₂ (SO ₄ ) ₃ ·18H ₂ O was dissolved in 35 g of secondary distilled water to prepare a metal precursor solution. A ligand precursor solution was prepared by dissolving 6.978 g of isophthalic acid, 0.27 g of trimesic acid, 5.60 g of caustic soda and 0.96 g of sodium aluminate in 126 g of secondary distilled water. Thereafter, the temperature was raised and reacted in the same manner as in Preparation Example 11 to synthesize and purify the adsorbent, and then Al-IPA-BTC1 was prepared. X-ray-diffraction analysis of the recovered powder. As a result of crystal structure analysis with Cu Kα beamline (40 kV, 30 mA, λ=1.5406 Å), a tetragonal structure having an _{I4 1 space group was revealed.} The lattice constants were a=21.30, c=10.73, and α=β=γ=90 ^o . In addition, the specific surface area value measured using a nitrogen adsorption isotherm at ^{-196 o} C after pretreatment at ^{150 o C and vacuum showed 625 m 2} /g.

Preparation 13.

To prepare Al-IPA-BTC2, 11.66 g of Al ₂ (SO ₄ ) ₃ ·18H ₂ O was dissolved in 35 g of secondary distilled water to prepare a metal precursor solution. A ligand precursor solution was prepared by dissolving 6.978 g of isophthalic acid, 0.27 g of trimellitic acid, 5.60 g of caustic soda and 0.96 g of sodium aluminate in 126 g of secondary distilled water. Thereafter, the temperature was raised and reacted in the same manner as in Preparation Example 11 to synthesize and purify the adsorbent, and then Al-IPA-BTC2 was prepared. X-ray-diffraction analysis of the recovered powder. As a result of crystal structure analysis with Cu Kα beamline (40 kV, 30 mA, λ=1.5406 Å), a tetragonal structure having an _{I4 1 space group was revealed.} The lattice constants were a=21.30, c=10.73, and α=β=γ=90 ^o . In addition, the specific surface area value measured using a nitrogen adsorption isotherm at ^{-196 o} C after pretreatment at ^{150 o C and vacuum showed 635 m 2} /g.

Preparation 14.

To prepare Al-Fe-IPA-BTC1, 11.08 g of Al ₂ (SO ₄ ) ₃ ·18H ₂ O and 0.71 _{g of Fe(NO 3} ) ₃ ·9H ₂ O were dissolved in 35 g of secondary distilled water to dissolve a metal precursor A solution was prepared. A ligand precursor solution was prepared by dissolving 6.978 g of isophthalic acid, 0.27 g of trimesic acid, 5.60 g of caustic soda and 0.96 g of sodium aluminate in 126 g of secondary distilled water. Thereafter, the temperature was raised and reacted in the same manner as in Preparation Example 11 to synthesize and purify the adsorbent, and then Al-Fe-IPA-BTC1 was prepared. X-ray-diffraction analysis of the recovered powder. As a result of crystal structure analysis with Cu Kα beamline (40 kV, 30 mA, λ=1.5406 Å), a tetragonal structure having an _{I4 1 space group was revealed.} The lattice constants were a=21.30, c=10.73, and α=β=γ=90 ^o . In addition, the specific surface area value measured using a nitrogen adsorption isotherm at ^{-196 o} C after pretreatment at ^{150 o C and vacuum showed 610 m 2} /g.

Example 1. Dehumidifying device equipped with hybrid nanoporous body

3 is a photograph of a fin tube coated with a hybrid nanoporous body in a dehumidifying device equipped with a hybrid nanoporous body according to an embodiment of the present invention.

4 is a photograph of a rotor-type rotating body coated with a hybrid nanoporous body in a dehumidifying device equipped with a hybrid nanoporous body according to an embodiment of the present invention.

3 and 4, the hybrid nanoporous body MIL-100 (Fe) according to Preparation Example 1 was coated on honeycomb-shaped fibers to prepare a fin tube connected to a heat pipe, and a rotor-type rotating body was prepared.

A dehumidifying device equipped with a hybrid nanoporous body was manufactured by mounting the fin tube or rotor-type rotating body in a case provided with an air flow path.

Experimental Example 1. Performance evaluation of hybrid nanoporous body

In order for the hybrid nanoporous body used in a general dehumidification system to be used in a dryer, etc., a high moisture absorption is required at a relative humidity of 80% or more, and at the same time, for high energy efficiency, it should be regenerated at 80 ° C., preferably 60 ° C. or less.

Performance evaluation was performed using a dehumidifying device having a hybrid nanoporous body according to Example 1.

Table 1 is an experiment to confirm the dehumidification performance of the dehumidifying device having a hybrid nanoporous body of the present invention. In repeated adsorption and desorption cycles, the adsorption conditions, the moisture adsorption amount and the desorption conditions at the ^{adsorption temperature of 30 o C and the relative humidity of 80%} The result shows the result of moisture desorption at a desorption temperature of 55 ^{o C and a relative humidity of 10%.}

[Table 1]

^a Adsorbed amount of water at 30°C and RH 80%; ^b Desorbed amount of water at 55 ^o C and RH 10%.

Referring to Table 1, after dehumidifying by introducing air containing moisture, the regeneration of the hybrid nanoporous body was repeated 5 times or more using a heat pump. As a result, 58 wt% at a temperature of 30 °C / 80% relative humidity. It was confirmed that regeneration (desorption) of 55 wt% or more was possible under conditions of abnormal moisture absorption (adsorption or dehumidification) and temperature of 55°C/relative humidity of 10%.

In general, since the dryer starts drying under the operating conditions of 80% or more of the initial relative humidity by the initial laundry, when the dryer uses a dehumidifier equipped with a hybrid nanoporous body, it is possible to remove a certain amount of moisture even at a low temperature of 30°C. Do.

In addition, even at a low temperature of 55° C. or less, the energy efficiency used for drying can be greatly increased because 94% or more of the adsorbent can be regenerated by the inflow of dry air with a relative humidity of 10%.

The dryer manufactured in Korea can regenerate the adsorbent using the heat of the compressor of the heat pump. The washing machine dehumidifying dryer sold in the United States does not have a heat pump, but it Since it is possible to regenerate the hybrid nanoporous body with minimal energy use by changing the route, it is possible to increase energy efficiency in all types of dryers.

Experimental Example 2. Evaluation of dehumidification performance of rotor-type rotating body

The amount of dehumidification according to the relative humidity of the dehumidifying device having the rotor-type rotating body manufactured in Example 1 was checked.

By coating various rotor materials, the amount of dehumidification according to the materials was evaluated.

The evaluation conditions were measured at 40°C based on the dry bulb temperature, and the humidity was measured while increasing from 20% to 120 minutes at intervals.

5 is a graph showing the rate of change of the amount of dehumidification according to the rotor material of the dehumidifying device having a rotor-type rotating body in the dehumidifying device having a hybrid nanoporous body according to an embodiment of the present invention.

[Table 2]

Table 2 shows the rate of change of the amount of dehumidification according to the rotor material of the dehumidifying device having a rotor-type rotating body in the dehumidifying device having the hybrid nanoporous body according to an embodiment of the present invention.

Rotors A to F had different compositions according to the characteristics of the product manufacturer.

Referring to Tables 1 and 2, there is a difference in dehumidification ability depending on the characteristics of the raw material of the rotor coated with the hybrid nanoporous body, but when checked based on the system evaluation condition of 60%, the amount of dehumidification compared to the rotor weight is 22%. became

Experimental Example 3. Performance evaluation of dehumidification system

A dehumidification system having a heat pump, a condenser, and an evaporator is built in the dehumidifying device of Example 1, and the performance of the system is measured according to standard conditions (Korean Industrial Standard: KS C 9317) when measuring the rated dehumidification capacity, and known existing products compared with the performance of

At ambient temperature, operate under the standard conditions (dry bulb temperature 27.0±1.0℃, wet bulb temperature 21.0±1.0℃) with the maximum dehumidification capacity, and measure the amount of dehumidification for 3 hours or more in a stable state and rated dehumidification per day (24 hours). The ability (L) is calculated, and in this example, it was confirmed based on a humidity of 60%.

The dehumidification efficiency is a value obtained by dividing the dehumidification capacity by the power consumed for one day, and was calculated by the following Equation 1 below.

[Equation 1]

In the compression-type dehumidification system, the sensible heat increases as the discharge temperature rises above 45℃, so the cooling ability is meaningless, but the conventional desiccant method using a moisture absorbent or a moisture absorbent or a hybrid nanoporous body according to another embodiment of the present invention is applied. In air, it passes through the evaporator in the process of separating water and air, and at this time, it is possible to evaluate the cooling capacity because cooling is possible by the endothermic heat caused by the vaporization of water.

Therefore, cooling capacity and coefficient of performance (COP) were measured for the desiccant method using the existing zeolite as a moisture absorbent and the dehumidification system using the hybrid nanoporous body according to another embodiment of the present invention as a moisture absorbent. .

[Table 3]

Table 3 shows the experimental results of cooling capacity and performance coefficient.

Compared to the conventional desiccant method, in the case of the dehumidification system using the hybrid nanoporous body, the power consumption was reduced, and the dehumidification ability was increased to show high dehumidification efficiency.

In particular, it was confirmed that dehumidification ventilation and dehumidification cooling can be performed effectively by possessing cooling capacity compared to the compression type.

Therefore, the dehumidification device and dehumidification system having the hybrid nanoporous body according to the present invention can remove moisture to perform dehumidification ventilation, dehumidification cooling, dehumidification drying, or two or more functions at the same time, thereby increasing energy efficiency and providing a high relative in a certain space. It can effectively solve problems caused by humid air.

In the case of a conventional dehumidification system using silica gel or zeolite, a separate moisture control configuration cannot be installed in a residential building space due to its large volume. However, as in the embodiment of the present invention, a dehumidifying device using a hybrid nanoporous body moisture adsorbent is additionally configured. It is possible to effectively design and install a system that greatly increases energy efficiency through an effective moisture control process while greatly reducing the volume.

For example, a hybrid nanoporous body according to the present invention may be provided to implement a composite dehumidification cooling system as shown in FIG. 6, and as shown in FIG. 7, the hybrid nanoporous body is applied as an adsorbent to an industrial air dryer You may.

That is, the composite dehumidification and cooling system having a hybrid nanoporous body according to the present invention is a system that integrates sterilization, dehumidification, cleaning, and air conditioning functions in a ventilation unit as shown in FIG. can be performed, and the dehumidification ability can be greatly improved compared to the existing air conditioner or dehumidifier.

In this complex dehumidification/cooling system, the adsorption dehumidification method of the dehumidifying rotor is applied together with the low-temperature dehumidification of the air conditioner for effective indoor dehumidification. It is possible.

Accordingly, the dehumidification effect can be maximized, and energy consumption can be minimized during regeneration.

In addition, as shown in FIG. 7, when the hybrid nanoporous body according to the present invention is applied to an industrial air dryer, the power consumption for regeneration is reduced by 60% or more, and the annual operating cost is reduced by about 2 billion when operating 40 units. It is possible.

In addition, greenhouse gas emissions are reduced by 61% compared to the existing (low-temperature silica alumina), and annual carbon credits can be secured at 380 million levels.

Although specific embodiments of the dehumidifying device and the dehumidifying system having the hybrid nanoporous body according to the present invention have been described so far, it is apparent that various implementation modifications are possible within the limits that do not depart from the scope of the present invention.

Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the following claims as well as the claims and equivalents.

That is, it should be understood that the above-described embodiments are illustrative in all respects and not restrictive, and the scope of the present invention is indicated by the claims to be described later rather than the detailed description, and the meaning and scope of the claims; All changes or modifications derived from the concept of equivalents thereof should be construed as being included in the scope of the present invention.

[Explanation of code]

100: dehumidifier 110: air circulation pump

120: fluid circulation pump 121: thermal fluid

10: air containing moisture 11: dry air

Claims (12)

Air containing moisture is introduced from a certain source on one side, a hybrid nanoporous body is provided inside to adsorb moisture from the moisture-containing air, and a thermal fluid absorbing waste heat is introduced to the other side into the hybrid nanoporous body. A dehumidifier equipped with a hybrid nanoporous body that desorbs and regenerates moisture from According to claim 1, The dehumidifying device provided with the hybrid nanoporous body is An air circulation pump that circulates the air inside by flowing the air containing the moisture to one side, and A dehumidifying device provided with a hybrid nanoporous body further comprising a fluid circulation pump for circulating the thermal fluid on the other side. According to claim 1, The dehumidifying device provided with the hybrid nanoporous body is An air flow path through which the air containing the moisture flows is provided inside, and a rotor-type rotating body or a fin-tube communicated with the air flow path and the hybrid nanoporous body is adsorbed is provided. A dehumidifying device equipped with a nanoporous body. According to claim 1, The hybrid nanoporous body is Metal-organic framework, a metal-organic framework, a metal-organic framework, or a combination thereof A dehumidifying device equipped with a hybrid nanoporous body, characterized in that it is a compound. 5. The method of claim 4, the metal is A dehumidifying device with a hybrid nanoporous body, characterized in that it is iron (Fe) or aluminum (Al). 5. The method of claim 4, The organic tricarboxylate is an anion ligand of trimesic acid or trimellitic acid, The organic dicarboxylate is terephthalic acid (terephthalic acid), isophthalic acid (isophthalic acid), and at least one selected from the group consisting of derivatives thereof, or fumaric acid (Fumaric acid), succinic acid (Succinic acid) , malic acid (Malic acid), mesaconic acid (Mesaconic acid), aspartic acid (Aspartic acid), and itaconic acid (Itaconic acid) hybrid nanopore, characterized in that any one anionic ligand selected from the group consisting of A dehumidifier equipped with a sieve. 5. The method of claim 4, The hybrid nanoporous body is Among the transition metal elements, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, and any one or more metals or oxides thereof from the group consisting of a dehumidifier equipped with a hybrid nanoporous body, characterized in that it further comprises . outdoor supplying air containing moisture; Air containing moisture is introduced from the outside, and a hybrid nanoporous body is provided inside to absorb moisture from the moisture-containing air to discharge dry air, and a thermal fluid is introduced to the other side of the hybrid nanoporous body. a dehumidifying device equipped with a hybrid nanoporous body that desorbs and regenerates moisture; a heat pump provided at one side of the dehumidifying device and circulating a thermal fluid to supply it to the dehumidifying device; a condenser provided at one side of the dehumidifying device to remove moisture from the air from which a predetermined moisture discharged from the dehumidifying device has been removed and supplying it to the room; an evaporator provided at one side of the dehumidifier and cooling the air from which a predetermined moisture has been removed from the dehumidifier and supplying it to the room; and and a waste heat source provided on the other side of the dehumidifier and supplying waste heat to the heat fluid. 9. The method of claim 8, the outdoor A dehumidification system, characterized in that any one selected from the group consisting of buildings, transportation means, and industrial facilities. 10. The method of claim 9, The internal space of the building and transportation means has a relative humidity of 60% or more at a standard temperature, and the internal space of the industrial facility has a relative humidity of 50% or more at a standard temperature. 9. The method of claim 8, the condenser A dehumidification system, characterized in that the moisture is removed again from the air discharged from the dehumidifying device and supplied to the room. 9. The method of claim 8, the evaporator A dehumidification system, characterized in that the air discharged from the dehumidifier is cooled and supplied to the room.

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